Device for recutting valve seats



June 24, 1930. w. DAVEY 1,765,968

DEVICE FOR RECUTTING VALVE SEATS Filed March 18, 1929 z9\ Q /zq 18 1s 15 1c] H 26 21 Z0 12 I in 7 21 25 a; 22 22 25528 25 q R 55. k 28 t .Zt 10 1 1:

INVENTOR ATTORNEY WILLIA AV Y; on CLEVELAND, onio' I 30 ly thre'aded" as are Pat-shied June. 24,1930

'nnvionjnon nnon'r'rme. VALVE seems Applieetion filed. ai-ch c, 122s.- se ial no. eaageei.

"This invention "relates to devices for recutting valve-seats, and has for its objects to provide a simpleandconvenientydevice with anovelfeeding devicefand also being i adapted to receive centering or anchoring devices o f'different siiesand shapes, easilyoperated and adapted 'to' be quickly and easily applied to faucets, ball-cocks and valve casings and the like ot'vafious shapes and v '10 sizes, andthrough' the instrliamentaliti-es'of the same,the valveseat thereinmaybe pel fectly recut with a 'levelseat, and with but a minimilm amount of client.

I f In the accompanyingdrawings.is shown anexample of my invention;

"l igurel l being a se'ctionalcentiral e'lev'a tionlof the deviceJY 1 Figure 2' is a ,sidefview otthel devlce at I'ight'angles to the view shown in Fig. 1,

"- 1 with-the"."frusto-conoidal member i 'eversedthereon. I

7 Like" numbei's relt'e'r the'lfig'ures; In said" drawings 1' indicates afrusto-conoidal body member having an axial 'thi'eaded'b'oi'e- 251andhaving an integi'al diaphragm- 3 closely-engaging thetool 1 shaft to centralize and-guidethe same, and

. also having external threads l-and' internal threads 5 and also having a portion exterion fThelfoundation unit A is provided on its ijewer side with'anlintegially formed annular retaining wall 7; this Wallis nternallythreaded as-at 8 of otherwise, and adapted to feversibly receive the threadedfportl'on 6 Tot the 'fi'usto-conoi'dalfzbody 'member whlch is externally thi'eaded to 'fit the threaded portion of the retainingwwalh Theboss-9 is concentric with the annular'retaining wall on the base plate 13', ljandgintegrally" formed therewith and is exterio'i ly threaded as at '10, and provided with an axialbore '11, the

adapted to screw onto this ;boss, thus prothreaded ortion 20f the body member is viding a'means to securethe trusto conoidal bodymembento the unit as shownyin ure 2. The upperside ofthe'foundatmn. unitis provided with integrallyformed secg tio'ns 12 12," and :haYlIlgJCOIlnGCtQCl ithe eto 1 atopboss 1'3, integr-allw th the SGClJlOIlSylOllil to like paits all' 'of separated from the unit and forming'with the unit a r eceiving opening lh The unit is centrally socketed as at 15 for therecep tion of a helical expansion spring 16 coiled about the tool shaft and'interposed betweenth'ehottom wall 17 of socket which se ves as i a" seat for the V lowers extremity of the spring and a mov-able securing means to 16'} yieldingly hold thej lajt tei", against a nonrotatable tubnlanelement orf'sleeve member 260 V mounted on the top boss." Thetop boss is exteriorly threadcd as -at18fbeing adapted to engage a similarly"threaded feeding device'19 mounted'thereon; The non rotateble tubular element 20 isf 'iorm'ed with; open sides, I in alignllne'ntfwith', and of the same Width as the sections onithe foundation unit.

The securing means 224s mountedin the receiving opening, adjustably, and on the tool'shaft and provided with a lockscre'w 23am]. an axial. bore 24-. The securing means is, 'socketedl on itsimderneath side as at--25 .165 v i-ngs 21; '21 fat fits diametrically opposite a to'receiv'e the upper {extremity of the helical expansion 2610 receive the lower extremity of thenonspringand on its upper sideas' at rota-table sleeve member mounted on the top hossjan d interposed betweenthe {feeding' de vice a d the securing means; '27 indicates the'upper, and 28 the lower-wall of the re;

' ceivln'g opening; The lock screw permitsthe securing-means to be adjusted at a predetermined P011113 onj libel-O01 shaft;

The non rotatable sleeve-member is employed to pre vent the feeding device from havingself looseningmovement whenthe tool shaft" is moved by the operator in'a; ounterclockwise";

direction in the 'm'e'chanism illustrated and also s'erves as regards ad 'ustment co0peI'atingwith' the feeding device andthje securing means, The helical expansion spring is em ployed to return the securing "means to {the 1 top wall of the receiving openingwhei'i'it has reached the lower wall of s-a me thi'ou'gh adjustment, and also to yieldinglyhold the se-- curing neans against the non-rotatable sleeve member. By unscrewing the feeding device the springforces, the securingl' means up wards carrying with, it :at the. same time the: sleeve member on the top boss- 29Li-ndicates v the tool sha'lt, having at its upperend an actuating means 30, and'at its loWer end a removablymount ed cutter 32, having a number or equior other suitably spaced cutting edges 33. By themethod shown it is pos sible to utilize frusto conoidal members of different. si zes-Jand shapes Without materially altering the parts of thej'foundation unit.

It Will be noted that the'ffoundation" unit is bo dily removable from the remainder of the device, 7 and may, be used independently thereof. rThe foundation unit is shown as ,being integrally formed but be of composite form. 'By the means outlined there is ample pressure available through the feedingdevice for'retaining the cutter in the desired cutting relation withithe valve seat iivithcertainty and reliability. It will be ab lity to idisconnectthe various parts,:and

readily understood that repairs and replacement c-anbe readily had by reason of the that =a-variety of frusto conoidakmembers thevalveseatis to be cut, The unit'may be constructed fof any suitable metal, such-as "to ;iron, steel or brass or'acombination of one or bothof these metals, or of any other metal usually employed inthe art and is n0t,there- I tore, des'cribedin,detail In the practical use Of'the. device, thebody member is screwed upon or; into the body portion of the easing of the valve, faucet or ball-cock from which the valve stem and cap V have been removed, the locking device released in. the

. securing means mounted on 'tl16 l]OOl shaft,

then the tool shaft ith its cutter is forced doWniIi the device until the cutter engages the valve seat,;the securing means isthen' locked on the shaft, and rotated clockwise; ifj necessary to change the position of the cutter relative to the valve seat, the feeding device is turned downward on the top boss,- andthe cutter again revolved, the operation is repeated until desired results have been quickly, effecting a large economy.

obtained. In thismanner the seat is recut The embodiments ofthe inventlon illustrated' andidescribe d herein have been selected forthepurpose of clearlysetting forth V the principles involved. Itvvijll be apparent,

however that the inventionis susceptible of being modified to meet the difier ent eonditions encountered in its use and I therefore I aim" to, cover by "the appended claims all 7V modifications within the true-' spirit and scope of my in'vention;

\Vhat isclaimed isz- '1; A device of the class described comprising a ioundationwinit With a socket therein, and also having a receiving opening in it, said-unit'having integralthreaded trally located boss with an axial bore therefoundation unit and also an ably mounted in the receiving opening, and

boss'wvith an axial boretherethrough at its; upper end, and an integral threaded cen-- through located on the lower end of the 1 interiorly threaded retaining wall at its lower end, an: adjustable socketedsecuring means adjustf having an axial bore therethrough and also 7 having a threaded setscrew for ,a locking device -mounted therein, a non-rotatable sleeve member vertically movably mounted on the upperboss and engaging the socket in i the securing means, a feeding device threadedly engaging the upper boss, an expansion spring mount d in the socket in the foundation unit and engaging the socket lnthe securing means, an internally and externally threaded frusto-con oidal body member having an integral diaphragm formedtherein and detachably secured tortli e foundation unit, and a slidably androtatably mounted tool shaft extending axially through said" device and havin an actuatin -meanson its upper end and a detachablymounted cutter.

onits lower end, a I v 2. Adevice of the class described'comprising a foundation unit.having a; receivingfi' opening in it, said unit havingan integral threaded boss with an axial bore therebore therethrough at its lower end, an adjustable securing means adjustably mounted in the receiving opening, and having an axial bore therethrough ancl,}alsohaving a threadedlocking device mounted therein and,

mounted on the tool shait,.a' non-rotatable sleeve member movably mounted on the upper 'boss and contacting with the securing means, a teeding'device threadedly engaging e5 through at its upperend and an integrali threaded centrally located boss with an axial the upper boss, a conicalspiral springinterposed between the underneath; side of the securing means and the lower vall of there ceiving opening, an= internally ;,tl1readed frusto-conoidal body member having aninteand a slidably andv rotatably mountedjtool shaft extending axially through said device having an actuating means on its upper end and a removably -mo'unted cutter having a ting edges, on its lowerend.

3; A device of the'class described "comprismg a foundation un t with, a socket therein,

and also having a receiving opening in it,

said unitv having an integral threaded: boss with an'axial bore therethroughatits upper end, aninteriorly threaded retaining wall at its lower end, an adjustablesocketed securing means adjustably mounted in the receiv gv p g; and having-an axial bore therethrough and also having a thread d lo ki 'gral diaphragm formed therein removably v secured to the boss on the foundation unit,

plurality of cutting-edges across itsflatface and also circumfere'ntially equi' spaced out a 12o device mounted "therein, a non-rotatable sleeve member vertically movably mounted on the upper boss and engaging the socket in the securing means, a feeding, device threadedly engaging the upper'boss, an expansion spring mounted in the socket in'the foundation unit and engagmg the socket 1n the secur ng means, an externally threaded frusto-conoidal body member having a portion extericrly 7 threaded; engaging, thethreaded-portion of the retainingfwall, an

integral diaphragm formed insaid body. member adapted to centralize and guide a tool shaft, the tool shaftextending axially throughsaiddevice and having an actuating means on its upper end and a detachably mounted cutter onits lower end. 7

4c. A device ofthe class described comprisinga foundation unit having a receiving opening in it, said unit having an integral threaded boss with an axial bore therethrough at'its upper end, and an integral threaded centrally located boss with-an axial bore ,therethrough at itslower end,;a securing means ,adjustably mounted-v in the receiv-' ing opening,,and having an axial bore therethrough and alsohaving a threaded locking device mounted therein, a nonrotatable sleeve member verticallymovably mounted 'on theupper boss, af teeding device threadcdlyengaging the upper boss, an expansion spring interposed betweenv the underneath side of the,securing:means and the lower wall of the receiving opening, an externally threaded frusto-conoidal body member having, an axial borefadaptedto engage a tool shaft, the'upper end ofsaid bore being enlarged and interiorly threaded adapted to screw onto thecentrally located threaded boss on the foundation unit, and a vertically 'slidable and rotatably ,imounted tool shaft extendingaxially through said device and having an actuating means on its upper end and a removably mounted cutter on its lower end. v

' 5. In a device of the'cla'ss described comprising a frusto-conoidal member externally threaded and having an axial bore and a socket thereinand having sections integrally formed andconnected therewith and formingtherewith a receiving opening and having an integralthreadedboss with an axial bore therethrough above said receiving opening the bore in said boss being in axial align ment with the bore in the frusto-conoidal body member, an'adjustable socketed securing means adjust-ably mountedin the receiving opening, and having an-axial bore there through and a threaded locking' device mounted thereln, a n'on -rotatable sleeve member having formed therein openings at its diametrically opposite sides, in alignment with, and of the same. width as the sections,

an expansion spring mounted in the socket frusto conoidal member and engaging the socket in the securing meansyand a slidably and'rotatably mounted tool!shaftextending axially through; said" device and havingan actuating means on itswupperend: and aide tac'hably securedxcutter: on its lower :end.

Opening in :it, said unit havingan integral interior-lythreaded boss at its upper end, an interiorly threaded. retaining wall at" its opening, and-having an axial bore there bossu'at the ,uppen end, said sleeve member having :an axial bore closely engaging: the tool-shaft,:i1ts lower end engagingqin the through and a v-threaded locking 4 means I mounted therein, a vertically movably sleeve at" l member mounted. 1n the; 1nter1orly4threaded v e socket-inthe-securing means, a" feeding-'device thrcadedly engaging the interiorly threaded upper boss, an expansion springinter 'aosed I betweenf the J lower *wall of the toundationunit and theiunderneath side of the securingmeans and having its. upper 'ex- 1.

tremity= mounted in the socket therein," a cylindrical body -member. having an :interi top,.said. bodymember having a portion-'ex orly threadedportionandbeing-of such i'n i ternal cross-sectional configuration to 'pro Y duce a greater width atthe' b'ot-t'om than the teriorly threaded adapted" to threadedly en- V gage the i threaded retaining wall on zthe I foundation unit, and a-slidably androta'tably mounted: tool shaft extending -:-axi ally through-said device and having an actuating means on its; upper: end and a "detachably mounted cutter having radially-'extendin-gcutters on its fiat' cut-ting'face and circu m-- ferentially-disposed cutting edges aroundits peripheryi 3 F 1 '7. A device of the class described comprising a cylindrical body member having an interiorly, tapered and threaded portion, oppositely disposed sections integral with said the sectionsand having an a-xial bore therethrough, and formlng with" the body 'memher a 'I'GCGIVIIIg opening, an adyustable se- I curing means a'd uStably mounted in the receivmg openlng, and having an axial-bore. therethrough and a threaded locking means mounted therein, I a non-rotatable sleeve 1 member mounted on the boss and engaging the securing means, a feeding device thread edly engaging the boss, an expansion spring interposed between the bodyfmember and the securing means, the base member having i v 70 w n-6, A" device. ofthe class descnbed-com= prising azfoundation unitihavm gi a receiving a n 5 v 3 lower e'nd, a'n1 ad ustable socketedsecuringq I 'means adjustably mounted in the receiving 110 1 body member, a threaded boss integral with I d sion' spring, and a slidably and rotatably V i axially through thesaid boss, securing means and and on :itslower end. a removably mounted V cutternhavingcutters whichbiases the valve seat in the direction of cutting-rotation. c

V 18. A deviceofthe'classdescribed comprisingfa foundation unit having'a receiving opening :;in it,1said unit having anintegral exteriorlythreadedboss atits upper end, and

V also an interiorly' threaded retaining Wall at its lower end, an adjustable securing means adj ustably mounted in the receiving opening, :1alIldhaVlIlg1aI 1-&Xla1bore therethrough and v althreadeld locking device mounted the'rein, a feeding device threadedly engaging the upper boss and having an axial bore thereg c y gaging a tool shaft and engaging the securing means, an expansion spring mounted on the tool shaft and interposed between the under side of the securing means and the lower Wall'of the. receiving 5120 opening body Qmember of composite. form comprislng a twodiarneter cylindrical body member having two portions detachably threadedtoge'ther, axially aligned,.the larger oflthe two cylindrical portions threadedly 2 engaging the, threaded retaining Wall of V the, foundation unit, the smaller cylindrical nortionthreadedly" engaging the larger cylindrical portion, each of said cylindrical- =portions being provided with an individual tapered and threaded inner bore, thesaid bore; in; the 'small'ercylindricalportion being steeply tapered, the saidwboreiin the larger cylindrical portion heing slightlyitw pered, and a slidably'and rotatably mounted g 'toollshaft, extending axially throughsaid device and :havingan actuating means on its c upper end andi a detachably mounted cutter onits lower end'.-.- I

7 -4 s gnature'.

In testimony whereof, I hereunto aflinmy ILLIAM D EY. 

